1 /*
2 * Copyright 1999-2020 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 #include <stdio.h>
11 #include "internal/cryptlib.h"
12 #include <openssl/asn1t.h>
13 #include <openssl/x509.h>
14 #include "crypto/x509.h"
15
16 /* Minor tweak to operation: zero private key data */
pkey_cb(int operation,ASN1_VALUE ** pval,const ASN1_ITEM * it,void * exarg)17 static int pkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
18 void *exarg)
19 {
20 /* Since the structure must still be valid use ASN1_OP_FREE_PRE */
21 if (operation == ASN1_OP_FREE_PRE) {
22 PKCS8_PRIV_KEY_INFO *key = (PKCS8_PRIV_KEY_INFO *)*pval;
23 if (key->pkey)
24 OPENSSL_cleanse(key->pkey->data, key->pkey->length);
25 }
26 return 1;
27 }
28
29 ASN1_SEQUENCE_cb(PKCS8_PRIV_KEY_INFO, pkey_cb) = {
30 ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, version, ASN1_INTEGER),
31 ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, pkeyalg, X509_ALGOR),
32 ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, pkey, ASN1_OCTET_STRING),
33 ASN1_IMP_SET_OF_OPT(PKCS8_PRIV_KEY_INFO, attributes, X509_ATTRIBUTE, 0)
34 } ASN1_SEQUENCE_END_cb(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO)
35
36 IMPLEMENT_ASN1_FUNCTIONS(PKCS8_PRIV_KEY_INFO)
37
38 int PKCS8_pkey_set0(PKCS8_PRIV_KEY_INFO *priv, ASN1_OBJECT *aobj,
39 int version,
40 int ptype, void *pval, unsigned char *penc, int penclen)
41 {
42 if (version >= 0) {
43 if (!ASN1_INTEGER_set(priv->version, version))
44 return 0;
45 }
46 if (!X509_ALGOR_set0(priv->pkeyalg, aobj, ptype, pval))
47 return 0;
48 if (penc)
49 ASN1_STRING_set0(priv->pkey, penc, penclen);
50 return 1;
51 }
52
PKCS8_pkey_get0(const ASN1_OBJECT ** ppkalg,const unsigned char ** pk,int * ppklen,const X509_ALGOR ** pa,const PKCS8_PRIV_KEY_INFO * p8)53 int PKCS8_pkey_get0(const ASN1_OBJECT **ppkalg,
54 const unsigned char **pk, int *ppklen,
55 const X509_ALGOR **pa, const PKCS8_PRIV_KEY_INFO *p8)
56 {
57 if (ppkalg)
58 *ppkalg = p8->pkeyalg->algorithm;
59 if (pk) {
60 *pk = ASN1_STRING_get0_data(p8->pkey);
61 *ppklen = ASN1_STRING_length(p8->pkey);
62 }
63 if (pa)
64 *pa = p8->pkeyalg;
65 return 1;
66 }
67
STACK_OF(X509_ATTRIBUTE)68 const STACK_OF(X509_ATTRIBUTE) *
69 PKCS8_pkey_get0_attrs(const PKCS8_PRIV_KEY_INFO *p8)
70 {
71 return p8->attributes;
72 }
73
PKCS8_pkey_add1_attr_by_NID(PKCS8_PRIV_KEY_INFO * p8,int nid,int type,const unsigned char * bytes,int len)74 int PKCS8_pkey_add1_attr_by_NID(PKCS8_PRIV_KEY_INFO *p8, int nid, int type,
75 const unsigned char *bytes, int len)
76 {
77 if (X509at_add1_attr_by_NID(&p8->attributes, nid, type, bytes, len) != NULL)
78 return 1;
79 return 0;
80 }
81
PKCS8_pkey_add1_attr_by_OBJ(PKCS8_PRIV_KEY_INFO * p8,const ASN1_OBJECT * obj,int type,const unsigned char * bytes,int len)82 int PKCS8_pkey_add1_attr_by_OBJ(PKCS8_PRIV_KEY_INFO *p8, const ASN1_OBJECT *obj, int type,
83 const unsigned char *bytes, int len)
84 {
85 return (X509at_add1_attr_by_OBJ(&p8->attributes, obj, type, bytes, len) != NULL);
86 }
87
PKCS8_pkey_add1_attr(PKCS8_PRIV_KEY_INFO * p8,X509_ATTRIBUTE * attr)88 int PKCS8_pkey_add1_attr(PKCS8_PRIV_KEY_INFO *p8, X509_ATTRIBUTE *attr)
89 {
90 return (X509at_add1_attr(&p8->attributes, attr) != NULL);
91 }
92
